This all seems very unlikely to me. Better tools have always made humans more useful, just doing different things. I do think it's interesting to consider wheth

This all seems very unlikely to me. Better tools have always made humans more useful, just doing different things. I do think it's interesting to consider whether there is some singularity where that trend dramatically reverses (Vonnegut's Player Piano is one of my favorite books...), but I think the better prior is that this is just another step up the abstraction ladder for humanity.